Normalize feat names (#8)

Reviewed-on: https://gitea.westgate.pw/ShadowsOverWestgate/sow-tools/pulls/8
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

internal/topdata/family_expansion.go

@@ -16,6 +16,11 @@ type familyExpansionSource struct {
 	Predicate string
 }
 
+type familyExpansionTitleStyle struct {
+	ChildCase          string
+	ChildParenthetical string
+}
+
 type familyExpansionSpec struct {
 	Family            string
 	FamilyKey         string
@@ -32,6 +37,7 @@ type familyExpansionSpec struct {
 	AllowExistingOnly bool
 	AutoPrereqFields  map[string]string
 	LegacyFamilyKeys  []string
+	TitleStyle        familyExpansionTitleStyle
 }
 
 func splitFamilyExpansionIdentity(text string) familyIdentity {
@@ -122,6 +128,10 @@ func parseFamilyExpansionSpec(path string, obj map[string]any) (familyExpansionS
 	if err := validateLegacyFamilyKeys(familyKey, legacyFamilyKeys); err != nil {
 		return familyExpansionSpec{}, fmt.Errorf("generated file %s: %w", path, err)
 	}
+	titleStyle, err := parseFamilyExpansionTitleStyle(obj["title_style"])
+	if err != nil {
+		return familyExpansionSpec{}, fmt.Errorf("generated file %s: %w", path, err)
+	}
 	allowExistingOnly, err := parseOptionalBoolField(obj["allow_existing_only"], "allow_existing_only")
 	if err != nil {
 		return familyExpansionSpec{}, fmt.Errorf("generated file %s: %w", path, err)
@@ -142,9 +152,41 @@ func parseFamilyExpansionSpec(path string, obj map[string]any) (familyExpansionS
 		AllowExistingOnly: allowExistingOnly,
 		AutoPrereqFields:  autoPrereqFields,
 		LegacyFamilyKeys:  legacyFamilyKeys,
+		TitleStyle:        titleStyle,
 	}, nil
 }
 
+func parseFamilyExpansionTitleStyle(raw any) (familyExpansionTitleStyle, error) {
+	style := familyExpansionTitleStyle{
+		ChildCase:          "preserve",
+		ChildParenthetical: "preserve",
+	}
+	if raw == nil {
+		return style, nil
+	}
+	obj, ok := raw.(map[string]any)
+	if !ok {
+		return familyExpansionTitleStyle{}, fmt.Errorf("title_style must be an object")
+	}
+	if childCase, ok := obj["child_case"].(string); ok && strings.TrimSpace(childCase) != "" {
+		style.ChildCase = strings.TrimSpace(childCase)
+	}
+	switch style.ChildCase {
+	case "preserve", "lower":
+	default:
+		return familyExpansionTitleStyle{}, fmt.Errorf("title_style.child_case must be preserve or lower")
+	}
+	if childParenthetical, ok := obj["child_parenthetical"].(string); ok && strings.TrimSpace(childParenthetical) != "" {
+		style.ChildParenthetical = strings.TrimSpace(childParenthetical)
+	}
+	switch style.ChildParenthetical {
+	case "preserve", "comma":
+	default:
+		return familyExpansionTitleStyle{}, fmt.Errorf("title_style.child_parenthetical must be preserve or comma")
+	}
+	return style, nil
+}
+
 func validateLegacyFamilyKeys(familyKey string, legacyFamilyKeys []string) error {
 	seen := map[string]string{}
 	normalizedFamilyKey := normalizeKeyIdentity(familyKey)
@@ -176,9 +218,10 @@ func isFamilyExpansionObject(obj map[string]any) bool {
 	_, hasAllowExistingOnly := obj["allow_existing_only"]
 	_, hasAutoPrereqFields := obj["auto_prereq_fields"]
 	_, hasLegacyFamilyKeys := obj["legacy_family_keys"]
+	_, hasTitleStyle := obj["title_style"]
 	return hasFamilyKey || hasTemplate || hasChildSource || hasNamePrefix || hasLabelPrefix ||
 		hasConstantPrefix || hasTemplateFields || hasDefaultFields || hasApplyAfterModules || hasChildRefField ||
-		hasIdentitySource || hasAllowExistingOnly || hasAutoPrereqFields || hasLegacyFamilyKeys
+		hasIdentitySource || hasAllowExistingOnly || hasAutoPrereqFields || hasLegacyFamilyKeys || hasTitleStyle
 }
 
 func optionalTrimmedString(obj map[string]any, field string) (string, bool) {